US3268704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric devices for heat treatment of windable material
Assignee: Individual
•
Filing: 1963-06-18
•
Granted: 1966-08-23
•
Expires: 1983-06-18
Abstract
No abstract record available.
Inventors
- 👤 Lionel B Cornwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:01
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/14; H05B6/145; B; B29; B29C; B29C66/00; B29C66/80; B29C66/87; B29C66/876
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN ELECTRICAL DEVICE FOR HEAT TREATMENT OF WINDABLE MATERIAL, COMPRISING A HEATER MEMBER OF ELECTRICALLY CONDUCTING METAL HAVING THE SHAPE OF A CLOSED RING, SUPPORTING ROLLERS ENGAGEABLE WITH, AND DISTRIBUTED OVER THE INNER PERIPHERY OF SAID MEMBER TO JOURNAL SAID MEMBER FOR ROTATION ABOUT ITS CENTER AXIS, ELECTRIC MEANS FOR HEATING SAID MEMBER, A ROTATABLE CAPSTAN PULLEY RADIALLY SPACED FROM SAID MEMBER AND HAVING A CAPSTAN AXIS PARALLEL TO SAID CENTER AXIS, SAID CAPSTAN PULLEY DEFINING TOGETHER WITH THE OUTER PERIPHERY OF SAID ANNULAR MEMBER A LOOP-SHAPED TRAVEL PATH FOR THE MATERIAL AROUND SAID CAPSTAN PULLEY AND AROUND THE OUTER PERIPHERY OF SAID MEMBER, WHEREBY THE MATERIAL TRAVELING ON SAID PATH IS HEATED BY CONTACT WITH SAID MEMBER WHEN THE DEVICE IS IN OPERATION.
Claim 2
Dependent Claim
124 words
AN ELECTRICAL DEVICE FOR HEAT TREATMENT OF WINDABLE MATERIAL, COMPRISING A HEATER MEMBER OF ELECTRICALLY CONDUCTING METAL HAVING THE SHAPE OF A CLOSED RING, SUPPORTING ROLLERS ENGAGEABLE WITH, AND DISTRIBUTED OVER THE INNER PERIPHERY OF SAID MEMBER TO JOURNAL SAID MEMBER FOR ROTATION ABOUT ITS CENTER AXIS, ELECTRIC MEANS FOR HEATING SAID MEMBER, A ROTATABLE CAPSTAN PULLEY RADIALLY SPACED FROM SAID MEMBER AND HAVING A CAPSTAN AXIS PARALLEL TO SAID CENTER AXIS, SAID CAPSTAN PULLEY DEFINING TOGETHER WITH THE OUTER PERIPHERY OF SAID ANNULAR MEMBER A LOOP-SHAPED TRAVEL PATH FOR THE MATERIAL AROUND SAID CAPSTAN PULLEY AND AROUND THE OUTER PERIPHERY OF SAID MEMBER, WHEREBY THE MATERIAL TRAVELING ON SAID PATH IS HEATED BY CONTACT WITH SAID MEMBER WHEN THE DEVICE IS IN OPERATION.
References Cited (Backward Citations)
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Cited
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US3035143A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |